Great Britain declared War on Germany on August 4 , 1914 . Because the country was under the dominion of the British Empire , Canada automatically became involved . However , the next day the Canadian Governor Genera officially declared War on Germany due to the overwhelming support of the country’s citizens ( The majority of these Were of British descent ) The War Measures Act was both adopted and enacted during the first vear of the war . This statue gave the Canadian government ” sweeping powers ” in times of emergency , to include war . Almost four vears later the statute was altered to give the government even more authority in response to the Russian Revolution in 1917.

97 , 184 men of the Canadian Corps achieved a decisive victory.

Over 300.000 Canadians had been recruited by 1916.